Sources in the Commission said while the poll panel had sought raw footage from the channels, it was provided with an edited copy.
Now, the Commission has asked them for a raw footage.
Meanwhile, Chief Election Commissioner Nasim Zaidi and Election Commissioner A K Joti this evening held a long meeting with top Commission officials to discuss the issue.
The sting by two channels on June 2 had purportedly showed MLAs negotiating a money deal in exchange for their votes in the biennial elections to four Rajya Sabha seats from the state.
Five candidates are in the fray for the elections to the four seats due to be held on June 11.
Congress and BJP are of the view that the elections should neither be cancelled or postponed.
